from flask import render_template, g, redirect, request, jsonify, current_app, abort

from info import constants, db
from info.models import Category, News, User
from info.modules.profile import profile_blu
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET


@profile_blu.route('/other_news_list')
def other_news_list():
    """返回指定用户的发布的新闻"""

    # 1. 取参数
    other_id = request.args.get("user_id")
    page = request.args.get("p", 1)

    # 2. 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    try:
        other = User.query.get(other_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not other:
        return jsonify(errno=RET.NODATA, errmsg="当前用户不存在")

    try:
        paginate = other.news_list.paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        # 获取当前页数据
        news_li = paginate.items
        # 获取当前页
        current_page = paginate.page
        # 获取总页数
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    news_dict_li = []
    for news_item in news_li:
        news_dict_li.append(news_item.to_basic_dict())

    data = {
        "news_list": news_dict_li,
        "total_page": total_page,
        "current_page": current_page
    }
    return jsonify(errno=RET.OK, errmsg="OK", data=data)


@profile_blu.route('/other_info')
@user_login_data
def other_info():

    user = g.user

    # 去查询其他人的用户信息
    other_id = request.args.get('user_id')

    if not other_id:
        abort(404)

    # 查询指定id的用户信息
    other = None
    try:
        other = User.query.get(other_id)
    except Exception as e:
        current_app.logger.error(e)

    if not other:
        abort(404)

    is_followed = False

    if other and user:
        if other in user.followed:
            is_followed = True

    data = {
        "is_followed": is_followed,
        "user": g.user.to_dict() if g.user else None,
        "other_info": other.to_dict()
    }
    return render_template('news/other.html', data=data)


@profile_blu.route('/user_follow', methods=["GET", "POST"])
@user_login_data
def user_follow():
    # get请求，默认显示个人中心的关注列表，post请求进行更改
    if request.method == 'GET':
        # 获取页数
        p = request.args.get("p", 1)
        try:
            p = int(p)
        except Exception as e:
            current_app.logger.error(e)
            p = 1

        # 取到当前登录用户
        user = g.user

        follows = []
        current_page = 1
        total_page = 1
        try:
            paginate = user.followed.paginate(p, constants.USER_FOLLOWED_MAX_COUNT, False)
            # 获取当前页数据
            follows = paginate.items
            # 获取当前页
            current_page = paginate.page
            # 获取总页数
            total_page = paginate.pages
        except Exception as e:
            current_app.logger.error(e)

        user_dict_li = []
        for follow_user in follows:
            user_dict_li.append(follow_user.to_dict())

        data = {
            "users": user_dict_li,
            "total_page": total_page,
            "current_page": current_page
        }

        return render_template('news/user_follow.html', data=data)

    # # TODO POST请求，进行取消关注操作
    # # 取到自己的登陆信息
    # user = g.user
    # if not user:
    #     return jsonify(errno=RET.SESSIONERR, errmsg="未登录")
    #
    # # 1. 获取参数
    # user_id = request.json.get("user_id")
    # action = request.json.get("action")
    #
    # # 2. 校验参数
    # if not all([user_id, action]):
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # if action not in ("follow", "unfollow"):
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    #
    # # 3. 取到要被关注的用户
    # try:
    #     other = User.query.get(user_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="数据查询错误")
    #
    # if not other:
    #     return jsonify(errno=RET.NODATA, errmsg="未查询到数据")
    #
    # # 4. 根据要执行的操作去修改对应的数据
    # if action == "follow":
    #     if other not in user.followed:
    #         # 当前用户的关注列表添加一个值
    #         user.followed.append(other)
    #     else:
    #         return jsonify(errno=RET.DATAEXIST, errmsg="当前用户已被关注")
    # else:
    #     # 取消关注
    #     if other in user.followed:
    #         user.followed.remove(other)
    #     else:
    #         return jsonify(errno=RET.DATAEXIST, errmsg="当前用户未被关注")
    #
    # return jsonify(errno=RET.OK, errmsg="操作成功")


@profile_blu.route("/news_list")
@user_login_data
def user_news_list():
    # 获取参数
    page = request.args.get("p", 1)

    # 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    user = g.user
    news_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.user_id == user.id).paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        current_page = paginate.page
        total_page = paginate.pages
        news_list = paginate.items
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    data = {
        "current_page": current_page,
        "total_page": total_page,
        "news_list": news_dict_li
    }

    return render_template('news/user_news_list.html', data=data)


@profile_blu.route("/news_release", methods=["GET", "POST"])
@user_login_data
def news_release():
    if request.method == "GET":
        # 加载新闻分类数据
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)

        category_dict_li = []
        for category in categories:
            category_dict_li.append(category.to_dict())

        # 移除最新的分类
        category_dict_li.pop(0)

        return render_template("news/user_news_release.html", data={"categories": category_dict_li})

    # 1. 获取新闻发布的相关数据（标题、分类、摘要、图片、内容）
    # 标题
    title = request.form.get("title")
    # 分类id
    category_id = request.form.get("category_id")
    # 摘要
    digest = request.form.get("digest")
    # 索引图片
    index_image = request.files.get("index_image")
    # 新闻内容
    content = request.form.get("content")
    # 新闻来源
    source = "个人发布"

    # 2. 校验参数

    if not all([title, category_id, digest, index_image, content, source]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    try:
        category_id = int(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 3.取到图片，将图片上传到七牛云
    try:
        index_image_data = index_image.read()
        # 上传到七牛云
        key = storage(index_image_data)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 4. 建立发布新闻模型
    news = News()
    news.title = title
    news.digest = digest
    news.source = source
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.category_id = category_id
    news.user_id = g.user.id
    # 1代表待审核状态
    news.status = 1

    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="数据保存失败")

    return jsonify(errno=RET.OK, errmsg="OK")


@profile_blu.route("/collection")
@user_login_data
def user_collection():
    # 1. 获取参数
    page = request.args.get('p', 1)
    # 2. 判断参数
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    # 3. 查询用户指定页数的收藏的新闻
    user = g.user
    news_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = user.collection_news.paginate(page, constants.USER_COLLECTION_MAX_NEWS, False)
        current_page = paginate.page
        total_page = paginate.pages
        news_list = paginate.items
    except Exception as e:
        current_app.logger.error(e)

    new_dict_li = []
    for news in news_list:
        new_dict_li.append(news.to_basic_dict())

    data = {
        "current_page": current_page,
        "total_page": total_page,
        "collections": new_dict_li
    }

    return render_template('news/user_collection.html', data=data)


@profile_blu.route("/pass_info", methods=["GET", "POST"])
@user_login_data
def pass_info():
    user = g.user
    if request.method == "GET":
        return render_template("news/user_pass_info.html")

    # 1. 获取参数
    old_password = request.json.get("old_password")
    new_password = request.json.get("new_password")

    # 2. 校验参数
    if not all([old_password, new_password]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 3. 检查旧密码是否正确

    if not user.check_password(old_password):
        return jsonify(errno=RET.PWDERR, errmsg="原密码错误")

    # 4. 修改新密码
    user.password = new_password

    return jsonify(errno=RET.OK, errmsg="保存成功")


@profile_blu.route("/pic_info", methods=["GET", "POST"])
@user_login_data
def pic_info():
    user = g.user
    if request.method == "GET":
        return render_template("news/user_pic_info.html", data={"user": user.to_dict()})

    # 如果是POST表示修改头像
    # 1. 取到上传的图片
    try:
        avatar = request.files.get("avatar").read()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 2. 上传头像
    try:
        # 使用自已封装的storage方法去进行图片上传
        key = storage(avatar)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传头像失败")

    # 3. 保存头像地址
    user.avatar_url = key
    return jsonify(errno=RET.OK, errmsg="OK", data={"avatar_url": constants.QINIU_DOMIN_PREFIX + key})


@profile_blu.route("/base_info", methods=["GET", "POST"])
@user_login_data
def base_info():
    # 不同的请求方式，做不同的事情
    # get请求用来显示此处的默认数据，比如显示默认的个性签名和昵称
    if request.method == "GET":
        return render_template("news/user_base_info.html", data={"user": g.user.to_dict()})

    # post请求可以用来做修改数据，比如要修改个性签名或者昵称
    # 1. 获取参数
    nick_name = request.json.get("nick_name")
    signature = request.json.get("signature")
    gender = request.json.get("gender")

    # 2. 判断参数
    if not all([nick_name, signature, gender]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if gender not in["MAN", "WOMAN"]:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    user = g.user
    user.signature = signature
    user.nick_name = nick_name
    user.gender = gender

    return jsonify(errno=RET.OK, errmsg="OK")


@profile_blu.route('/info')
@user_login_data
def user_info():
    user = g.user
    if not user:
        return redirect("/")
    data = {"user": user.to_dict()}
    return render_template("news/user.html", data=data)
